protected override Task RemoveKeyAsync(string cacheKey)
{
var cacheEntries = _tokenCacheDb.Records.Where(c => c.CacheKey == cacheKey);
_tokenCacheDb.Records.RemoveRange(cacheEntries);
_tokenCacheDb.SaveChanges();
return(Task.CompletedTask);
}
protected override async Task WriteCacheBytesAsync(string cacheKey, byte[] bytes)
{
if (_cacheDbRecord == null)
{
_cacheDbRecord = new TokenCacheDbRecord
{
CacheKey = cacheKey
};
}
_cacheDbRecord.CacheBits = _dataProtector.Protect(bytes);
_cacheDbRecord.LastWrite = DateTime.Now;
try
{
// Update the DB and the lastwrite
_tokenCacheDb.Entry(_cacheDbRecord).State = _cacheDbRecord.TokenCacheId == 0 ? EntityState.Added : EntityState.Modified;
_tokenCacheDb.SaveChanges();
}
catch (DbUpdateConcurrencyException)
{
// Record already updated on a different thread, so just read the updated record
await ReadCacheBytesAsync(cacheKey).ConfigureAwait(false);
}
}
